Motor for operating fans



' (No Model.)

J. J. FAULKNER.

. F G m T A R E P nU R 0 F R 0 T 0 M Patented Nov. 5, 1895.

www? A 3 Sheets-Sheet 2.

(No Model.)

J. J. PAULKNER. MOTOR POR OPERATING FANS, O0.

:Patented Nov. 5, 1895.

AN BREW BOGRANAM. PHOTO LITHQWSH ING'ION. D C

(No M5551.)

J. J. FAULKN-ER. MOTOR-FOR OPLRTIN'G FANS, &`c. W

3 sheets-s115553;

f 115.549.118. Patented Nov. 5, 1895.

UNITED STATESV PATENT OFFICE,

JAMES JONES FAULKNER, OF MEMPHIS, TENNESSEE, ASSIGNOR OF ON'E- I'IALE TOE. J. FITZHARRIS, OF SAGINAW, MICHIGAN.

MOTOR FOR OPERATING FANS, am.

SPECIFICATION forming part of Letters Patent No. 549,118, dated November5, 1895. v

Application filed February 18, 1895. Serial No.538,739. (No model.)

To a/ZZ whom t may concern:

Be it known that I, JAMES JONES FAULK- NER, a citizen of the UnitedStates, residing at Memphis, in the county of Shelby and State ofTennessee, have invented certain new and useful Improvements in Motorsfor Operating Fans, rc. and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to motors especially designed for operatinghousehold devicessuoli as fans, hammocks, cradles, and the like; and itconsists in an improved hydraulic motor by the action of which apositive rotary motion is given to the driving or power shaft, theconstruction and arrangement of the parts of which will be hereinafterfully described, and particularly pointed out in the claims.

My present invention belongs to the same general type of hydraulicmotors as that described in my application for Letters Patent forimprovements in motors filed December 12, 1894, Serial No. 531,566. Insaid application I described a hydraulic motor whose special noveltyconsisted in the means employed to operate the valve used to control thecylinder-ports. To one end of the pistonrod of the motor described insaid application was attached a rack-bar which geared with a gear-wheelupon the power-shaft and gave an intermittent rotary motion to the same,which motion was transmitted through suitable means shown to the fans orother objects acted upon. To this piston-rod was also attached a rodwhich was intimately connected with the valve-rod which extendedrearward from the balanced valve and was the means of actuating thesame, and thu-s causing the proper and continuous operation of themotor. This means of actuating the valve was, as before stated, thechief point of novelty of the motor described in the abovementionedapplication. The motor which I described in said application was onlycapable of giving an intermittent or reversed rotary motion to thepower-shaft. is desirable for the actuation of certain classes of fansand for certain styles and kinds of y lVhile this household devices, forother purposes, and in general for the transmission of power, itisnecessary that the power-shaft should have a continuous rotary motion.In devising the motor which forms the subject-mattei' of thisapplication I have, therefore, while adopting the same valve mechanismas that shown in my former application, and using, though in a somewhatmodified form, the same trip mechani sm, provided means whereby theintermittent reciprocatory movement of the pistonrod is transformed vinto a positive rotary movement of the power-shaft.

The means which I employ to obtain the above-mentioned result may bebrieiy described' as follows: To one end of the pistonrod I secure astaggered double yoke, on both the inner faces of which are formedgear-teeth. The power-shaft is so journaled as to run transversely ofthe yoke, and upon this powershaft are mounted gear-wheels which meshwith the two rack-surfaces of the double yoke land are so secured to thepower-shaft as to cause the same to have a positive rotary movement bytheir actionr As I design my present motor especially forhouseholddevices, it is important that noise be avoided in its operation. Toavoid noise and lost motion, I secure the gear-wheels to the powershaftby means of springs and rollers, which are placed in inclined slots cutaround the central aperture, through which the powershaft passes andwhich serve to cause each gear-wheel to exert power when moving in onedirection, but to move idly upon the shaft when moving in the otherdirection. As the two gear-wheels are so arranged that they both act torotate the shaft in the-same direction, but are operated to transmitpower by reverse movements of the double yoke, the continuous rotarymotion of the power-shaft above stated is obtained. I avoid anyhesitancy in movement of the power-wheel by reason of the manner inwhich the shaft on which it is mounted is rotated by securing-the saidwheel to the said shaft by a spring connection, thus overcoming anyuncertainties of movement which might otherwise be present.

My invention is fully represented in the drawings which accompany andform a part of my application, in which the same refer- IOOence-numerals refer to the same .or corresponding parts, and in which-Figure 1 is a perspective view of my improved motor. Fig. 2 is a centralsection of the same, showing the cylinder, piston, valvegear, staggereddouble yoke, the gears by which the piston transmits its motion, and thetrip mechanism by which the valve is operated through the movement ofthe piston-rod. In this figure the valve is shown at the eXtreme rightend of its movement. Fig. 3 is a similar view, the position of thepiston and main cylinder differing from that shown in Fig. 1, owing tothe fact that water had been admitted to the cylinder and has forced thepiston to near the extreme end of its stroke. The end of its stroke hasnot been reached as yet, however, and the balanced valve has not beenshot by the mechanism operated by the piston. Fig. 4 is a similar view,the piston having reached the extreme limit of its movement and nowoccupying the end of the cylinder opposite of that in which it is shownin Fig. 2, the valve having been shot and the piston being about to bereciprocated backward. of the valve-chamber, showing the exhaustchamberin its relation to the main valvechamber. Fig. (i is a detail front viewof the balanced valve. Fig. 7 is a transverse section of the power-shaftand the mechanism used to convey the motion of the double yoke to saidshaft. Fig. 8 is a front view of one of the gear-wheels, showing theinclined slots cut in the same around the central aperture, throughwhich the power-shaft passes, and also showing in position the springsand rollers which serve to connect said wheel to said shaft. This viewis taken on the opposite side of the staggered yoke from that shown inFigs. 2, 3, and 4. Fig. 9 is a back view of the upright support whichserves as a bearing for the double yoke and is intended to particularlyshow the manner in which the two portions of said yoke are guided intheir movement.

Referring to the drawings, 1 represents the base of my motor.Screw-holes 1 are formed in this base, by means of which the motor canbe screwed to a wall or in any other convenient position, so as to bereadily connected to the source of water-supply. Upon this base-frame ismounted the cylinder 2, within which moves the piston 3, to which isattached the piston-rod 4. To the outer end of the piston-rod isattached the staggered double yoke 5, which meshes with gear-wheels Gand 6, mounted upon the power-shaft 7, and thus transmits t-he powercaused by the reciprocation of the piston-rod to the said shaft 7.

On the top of the cylinder 2 is mounted a valve-chamber 8, provided withan exhaustchamber 9. In the valve-chamber reciprocates the balancedvalve 10. (Shown in front view in Fig. 6.) To this valve is attached thevalve-rod 11, which has an outer bearing Fig. 5 is a sectional view inthe projecting standard 12, (which standard is integral with the base1,) and upon which is located the various springs and collars by which,in a manner hereinafter to be described, the valve is caused to be shotat the proper moment, and thus fuliill its function.

At both ends of the cylinder 2 are formed ports 13, which are incommunication through suitable passage-ways with ports 14, formed in thevalve-chamber. It is through these ports 13 and 14 that water isalternately admitted to and exhausted from the cylinder. Egress-ports15, formed in the valve-chamber, permit the escape of the water to theexhaustchamber 9, and thence out by delivery-pipe 1G. The water-ingresspipe is represented at 17 and may be directly connected, as shown inFig. 1, to the faucet 18 of the water-supply, thus arranging for thecomplete automatic operation of the motor.

1 will now proceed to describe in full the construction and operation ofthe balanced valve. This valve is best shown in Figs. 2, 3, and 4, andconsists of a hollow casing having two heads 19,which iit snugly to thesides of the valve-chamber, and a centrally-reduced portion 20, whichpermits the inflowing water to reach the inlet-ports, so that it canoperate the piston. Through the hollow interior of the valve passes thevalve-rod 11, and in each end of the hollowed ends of the valve there isheld by the rod 11 over the central orifice into the valve an angledplate 21,which obstructs, but does not entirely close, the said hollowedinterior of the valve. Through the small openings thus formed in theends of the valve the water passes at the end of the valve-strokes andthus cushions the valve, preventing the shock and noise which wouldotherwise be attendant to its movement.

ln Fig. 2 the piston is shown at the extreme right end of its movement,water iiowing in through the inlet-pipe 17 and through ports 14 and 13to the right of the piston, so as to force it through the cylinder,which we may suppose to be filled with water. The water already in thecylinder will be forced out, as the piston advances, through the ports13 and 14 at the left end of the valve-chamber through the egress-port15, an d thence through the exhaust-chamber 9 to the outlet-pipe andaway from the motor. The water-power will be sufiicient to move thepiston to the extreme end of its stroke; but it is necessary to providefor the shooting of the valve when it has reached its extreme stroke, sothat its backward movement may be possible. It is obvious also that themeans used to shoot the valve must be brought into operation when theextreme limit of the piston-stroke has about been reached and notbefore.

On valve-rod 11 are loosely mounted spiral springs 22 and 23, the saidsprings being on opposite sides of the casting 24, which projects upwardfrom the forward end of the staggered yoke 5 and encircles with its 'up-IOO ITO

per end the said valve-rod, serving in itsoperation to compress springs22 and23 'alternately. The projections 26, which are formed at suitableplaces on the top surface of the staggered yoke 5 act in a mannerhereinafter to be described to trip the weighted dogs 27, which arejournaled upon a pin projecting from the standard l2, but on oppositesides of said standard, and normally rest their upper ends against thevalve-rod. Upon the valve-rod ll are also keyed the collars 28, 29 and30, which when properly set give the proper movement to the balancedvalve. Comparing now closely Figs. 2, 3, and 4, in Fig. 2 we see thatthe piston is at the eX- treme right end of its movement and that thespring 22 has forced the valve ll to the eX- treme right end of itsmovement, the left dog 27 being forced upward and away from thevalve-rod by the left coned collar 26, but the upper end of the rightdog 27 resting against the valve-rod. As the water admitted to thecylinder forces the piston to the left, the upright casting 24 and theparts connected therewith are alike forced to the left, since they arerigidly connected with the piston. In Fig. 3 we see, therefore, that thehead of the upright casting 24 is exerting a pressure against the spring22,.said spring being confined and held from movement by the nut 28. Thevalve-rod ll is prevented from movement by the dog 27 engaging with thenut 30, and thus the valve is still held in the same position that itwas in Fig. 2. As the piston moves still farther forward, the right-handconed collar 26 will lift the right dog 27 until, as shown in Fig. 4,when the eXtreme end of the stroke is reached, said dog is lifted andremoved from engagement with the collar 30, and the spring 22, pressingagainst nut 28, is now allowed to be relieved and to shoot the valve,which it has done in Fig. 4, the parts being' now in just the reverseposition from that shown in Fig. 2. The movement of the balanced valveis quite sharp; but shock and noise are prevented by the water beingallowed to pass through the openings formed by the angled plate 2l intothe interior of the valve, and thus communicating the pressure to theother end of the valve-chamber. Having thus followed the movement of thepiston from one end of the cylinder to the other, it is easy to beunderstood how the` same movement takes place in its backward movement,except that the movements detailed are reversed, and how the spring 23is compressed against the nut 29 until the left coned collar 26 raisesthe left dog 27 and allows the valve to be shot backward when the partsare in the position shown in Fig. 2. It will thus be seen that' themeans which I have devised for operating the balanced valve are entirelyautomatic in their operation, are simple in construction, durable, andare not easily gotten out of order. The motor can operate for anindeinite length of time with no attention, and can be started orstopped by turning on or olf the water. No care or attention whatever isneeded to operate the motor, and its construction is such as to permitit, by suitable nickeling, to be attractive and ornamental inappearance.

Thus far the mechanism which has been described is almost identical withthe corresponding mechanism described in my previous application abovereferred to, the only difference being in the manner of tripping' thedogs 27. The means which I have used to transmit the power of the pistonto the power-shaft and to transform the reciprocatory movement naturallyimparted by the piston to a rotary movement depart entirely, however,from the construction shown in my former application, and will now bedescribed.

I have stated that to one end of the pistonrod 4 is attached thestaggered yoke 5. This yoke is guided in its reciprocation by theupright standard l2, slots l2 being cut on opposite sides of the same toaccommodate the movement of the upper and lower portions of the yoke.The inner surfaces of both portions of the yoke are formed withgear-teeth, so that in effect the staggered yoke consists of tworack-bars 3l and 3l. Vith these rackbars mesh the gear-wheels 6 and 6',both of which are mounted upon the'shaft 7, which extends transverselyof the double yoke. The gear-wheels are held in proper relation to theracks with which they respectively mesh by means of the circular disk orplate 32, which is placed between them, and has bearingsurfaces againstthe sides of both the top and bottom portion of said rack. Each of thesegear-wheels meshes with only one of the two racks formed on the doubleyoke, and each is so connected with the power-shaft as to impart motionto the same when moving in one direction,bnt to move idly upon the samewhen moving inthe other direction. As the rotative impulse exerted byboth gear-wheels is in the same direction, a positive rotary motion ofthe power-shaft results.

The connection of the gear-wheels to the shaft is best illustrated inFig. 8, where one of the gear-wheels is shown in face view. shown insaid ligure, around the central aperture,through which the power-shaftpasses, are cut a number-in this instance threeof inclined slots 33, ineach of which is placed a roller 34 and a spring 35. If the action of agear-wheel upon the power-shaft be considered, it will be seen that whenthe gear-wheel is caused to rotate clockwise the rollers will be pressedbetween the downward sloping surface of the slots and the shaft, andwill thus give a tight connection between the shaft and gear wheel,which will necessitate a movement of the shaft corresponding with themovement of the gear-wheel; but if the movement of the gear-wheel beanticlockwise the rollers will tend to be forced into the large orsquare end of the slot against the action of the cupped springs 35 andin this IOO IIO

instance can exercise no power impulse. The wheel will, therefore, moveidly upon the shaft.

\Vhen the motor is viewed from theside shown in Figs. 2, 3, and et, theaction of the roller and springs will of course be opposite to that juststated, the shaft being gripped and rotated when the movement of thegearwheel 6 is anticlockwise and released when the movement of saidgear-wheelis clockwise.

In placing the gear-wheels upon the shaft the slots of the twogear-wheels are made to incline in the same direction-that is to say,the square or abrupt ends of the slots of the wheels coincide inposit-ion with each other, and also the inclined portions of said slots.If now it be considered that one of the gearwheels is actuated by thelower rack-bar and the other gear-wheel is actuated by the upperrack-bar and that the wheels move independently of each other, it willbe seen that they both exert a rotary movement in the same direction andthat while one of them is actuated to transmit power as the pistonrodmoves backward the other moves idly upon the shaft during such movement,and that this other gear serves to transmit power to the shaft duringthe forward reciprocation of the piston-rod, while the first-mentionedgear-wheel moves idly upon the shaft. In this manner a positive rotarymovement is given to the power-shaft. This manner of connecting thegearwheels to the shaft possesses the great advantage of being noiselessin its operation and of avoidin g all lost motion.

It is possible that in the movement of the power-shaft there may occurslight irregularities, and to prevent any such being transmitted to thepower-wheel, if there be any such, I mount said wheel upon said shaftloosely and connect the wheel to the shaft by means of the shaft i0,which engages with the luOs il, formed on the power-wheel, and causesthe movement of the same. All irregularities of movement of thepowershaft are hereby overcome and obviated in their transmission to thepower-wheel.

I do not restrict myself to this manner of .carrying the power, as I maytranslnit the power through a flexible shaft or in any other manner.

It will be seen that the motor which I have herein described is adaptednot only to transmit power for operating rotary fans and the like, butfor general power purposes, and I do not restrict myself to any one use,hor do I retrict myself to the unessential details of constructionshown; but ,t

That I claim as new, and desire to secure by Letters Patent, is-

l. In a motor for operating fans, zc., the combination with a cylinder,and a suitably operated valve therefor, of a piston, a piston rod havingattached to one end a staggered double yoke having racks formed on bothits inner faces, a power shaft extending transversely of said yoke,gear-wheels meshing with said racks and so mounted upon said shaft as toimpart a continuous rotary movement to the same, means mounted on saidgear-wheels for automatically gripping the shaft in accordance with thedirection of the movement of the staggered yoke, and an independentcircular disk mounted on the power shaft between said gear-wheels, andhaving a bearing surface with its periphery against the inner faces ofboth the top and bottom portions of the staggered yoke, substantially asdescribed.

2. In a motor for operating fans, the., the combination with a cylinder,and a suitably operated valve therefor, of a piston, a piston rod havingattached to one end a staggered double yoke having racks formed on bothits inner faces, a power shaft extending transversely of said yoke,gear-wheels, having' inclined slots cut around the central aperturesformed therein, mounted upon said shaft and meshing with said racks,rollers 34e and springs 35 placed in said slots to hold the gear-wheelsto the shaft and to cause them to impart a continuous rotary movement tothe same, and a circular disk mounted on the power shaft between saidgear-wheels, and having a bearing surface with its periphery against theinner faces of both the top and bottom portions of the staggered yoke,substantially as described.

In a motor for operating fans, the., the combination with a cylinder,and a suitable valve therefor, of a piston, a piston rod having attachedto one end a double toothed yoke, a power shaft extending transverselyof said yoke, gear-wheels meshing with said double yoke and so attachedto said shaft as to impart a continuous rotary movement to the same, apower wheel mounted on said shaft, and a spring IO passed through a holein said shaft, and having both its ends bent backward so as to beparallel with each other, for connecting said wheel to said shaft,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES JONES FAULKNER.

\Vitnesses:

C. L. BERLIN, B. W. OAPrs.

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